quick question: vacuum advance hookup - The 1947 - Present Chevrolet & GMC Truck Message Board Network

*mike reeh* · 02-25-2003, 02:41 PM

not that this subject hasnt been beaten to death but you guys with quadrajets and HEI, what port (not ported or full, which actual port on the carb) do you hook your HEI's vacuum advance to? Just want to get an idea of what everyone else does..

mine is a 77 sbc 400, advance is connected to the port on the front of the carb (passenger side, but front face)

mike

**swervin ervin** · 02-25-2003, 04:40 PM

Here's where I have mine. This is a full manifold port.

Edit: The port the arrow is pointing too don't come stock on the 1904. It had a single tube. I took the tee port out of my old stock Q-jet and put it in the single ports place.

Prerunner1982 · 02-25-2003, 05:10 PM

mine is hooked up to the one that is to the right of the pcv hookup, which on mine is the big port right below the fuel filter.. sorry no pic!

82 Silverado 4X · 02-25-2003, 07:03 PM

My 77 Blazer Chalet has the original 400 and Q-jet carb. Mine came set-up for leaded fuel (titled House Car) so the setup might be different.
When standing in front of the truck looking in at the carb, my vacume advance hose is on the port directly above the right (drivers) side mixture screw. There is no -T- on mine.

Prerunner1982 · 02-25-2003, 07:28 PM

George i believe that is the same one that mine is hooked too

02-25-2003, 02:41 PM	#1
mike reeh 5 day ban, learn to behave. Join Date: Nov 2002 Location: san diego, ca Posts: 683	quick question: vacuum advance hookup not that this subject hasnt been beaten to death but you guys with quadrajets and HEI, what port (not ported or full, which actual port on the carb) do you hook your HEI's vacuum advance to? Just want to get an idea of what everyone else does.. mine is a 77 sbc 400, advance is connected to the port on the front of the carb (passenger side, but front face) mike

02-25-2003, 04:40 PM	#2
swervin ervin You get what you pay for Join Date: Dec 1999 Location: Cherryville, NC Posts: 4,798	Here's where I have mine. This is a full manifold port. Edit: The port the arrow is pointing too don't come stock on the 1904. It had a single tube. I took the tee port out of my old stock Q-jet and put it in the single ports place. __________________ Mike 1985 Chevy C-10 Last edited by swervin ervin; 02-25-2003 at 05:14 PM.

02-25-2003, 05:10 PM	#3
Prerunner1982 Registered User Join Date: Oct 2002 Location: Edmond, OK Posts: 5,904	mine is hooked up to the one that is to the right of the pcv hookup, which on mine is the big port right below the fuel filter.. sorry no pic! __________________ Jon 1982 Chevy Silverado 350/th350.... RETIRED 1993 Jeep XJ 2 door(Cherokee) 4wd 4.0ltr/AX-15 (5spd)/NP231 .... Oklahoma Roll Call

02-25-2003, 07:03 PM	#4
82 Silverado 4X Genuine Chevrolet Join Date: Feb 2003 Location: South West Pennsylvania. Posts: 582	My 77 Blazer Chalet has the original 400 and Q-jet carb. Mine came set-up for leaded fuel (titled House Car) so the setup might be different. When standing in front of the truck looking in at the carb, my vacume advance hose is on the port directly above the right (drivers) side mixture screw. There is no -T- on mine. __________________ George 82 Silverado LWB 4x4 350 SM465 NP208 77 Chevrolet Blazer Chalet 400 TH350 NP203

02-25-2003, 07:28 PM	#5
Prerunner1982 Registered User Join Date: Oct 2002 Location: Edmond, OK Posts: 5,904	George i believe that is the same one that mine is hooked too __________________ Jon 1982 Chevy Silverado 350/th350.... RETIRED 1993 Jeep XJ 2 door(Cherokee) 4wd 4.0ltr/AX-15 (5spd)/NP231 .... Oklahoma Roll Call



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